TWM556986U - Shaping mold structure of loudspeaker membrane - Google Patents

Abstract

A forming mold structure for a horn vibrating piece, comprising: a first mold having a pressing surface, the pressing surface is convexly provided with a pressing wave portion; and a second mold corresponding to the pressure The forming surface has a forming surface, the forming surface is convexly provided with a forming wave portion, and the forming surface is further recessed with at least one wire protection groove, wherein the wire protecting groove is located at the forming wave portion; wherein A mold and the second mold are pressed together by a pressing means, so that the wire protection groove and the pressing surface form a forming protection space; thereby, the present invention is capable of forming a heat forming process through the above structure. The protective wire can effectively solve the problem that the horn vibrating piece is deformed or damaged due to heat when the wire is heated and pressurized in the process.

Description

Forming die structure of horn vibrating piece

This creation is related to a mold structure, in particular to a forming mold structure of a horn vibrating piece.

Press, the general speaker includes the woofer, the midrange unit, and the tweeter. These three units are responsible for different frequencies. Most speakers work on the same principle. Like a typical moving coil horn, an electromagnetic field is generated when current flows through the wire to the voice coil. Since this electromagnetic field is at right angles to the magnetic field of the permanent magnet on the horn, this forces the movable coil to be subjected to motion within the gap. The mechanical force generated by this movement causes the paper tray attached to the voice coil to vibrate vertically, up and down, thereby vibrating the air, transmitting audio to the human ear, achieving the purpose of sound restoration for listening, and realizing electrical energy to sound energy. Conversion.

However, since the damper (also known as the elastic wave) in the horn is connected to the voice coil, and the main function of the vibrating piece is used to hang the voice coil and the drum paper, the structure is mostly a plurality of concentric circles and the cross section is The wavy shape can support the voice coil and the drum paper by the vibrating piece. Therefore, the vibrating piece can directly affect the amplitude of the drum paper and affect the sound quality of the horn.

In addition, the current wire vibrating piece comprises a body and a plurality of wires, and is fixedly coupled to the body through at least one wire, and one end of the wire is connected to the voice coil, and the other end is connected to the input terminal. The conventionally used shaped wire vibrating piece mainly uses cotton cloth as a basic material, and the cotton cloth is dipped in a liquid synthetic resin, so that the fiber of the cotton cloth absorbs the synthetic resin, and the cotton cloth absorbing the synthetic resin is further subjected to the plural forming after drying and hardening. The mold is heated, pressurized, and cut to form a wire vibrating piece having annular corrugations on the surface.

However, when heated and pressed, the mold will also cause hot pressing of the wires. This processing procedure will cause damage to the wires, and the wires are mostly twisted or woven by a plurality of metal wires. After a long period of vibration of the wire vibrating piece, the damage caused by the forming of the wire vibrating piece may cause the whole wire to be deformed, and even the wire breakage may occur.

In more detail, when the wire vibrating piece with damage is installed in the horn operation, not only will the sound quality be affected, but also the wire vibrating piece will be used for a long time, which will make the damage more serious and lead to the use of the horn. The problem of shortened life.

Therefore, after observing the above-mentioned missing, the creator of the case believes that the mold structure of the wire vibrating piece of the conventional speaker still needs further improvement, and the creation of this creation is not found.

The main purpose of the present invention is to provide a forming mold structure for a horn vibrating piece, which can effectively solve the problem that the horn vibrating piece is deformed or damaged due to heat when the wire is heated and pressurized in the process. The problem.

In order to achieve the above object, the forming die structure of the horn vibrating piece provided by the present invention comprises: a first die having a pressing surface, wherein the pressing surface is convexly provided with a pressing wave portion; a second mold having a forming surface corresponding to the pressing surface, the forming surface is convexly provided with a forming wave portion, and the forming surface is further recessed with at least one wire protection groove, the wire protection groove is located The shaped wave portion.

Preferably, the pressing wave portion of the first mold has a circular block shape, and the shaped wave portion of the second mold is also in the form of a circular block corresponding to the pressed wave portion.

Preferably, the central portion of the shaped wave portion and the pressed wave portion respectively have a circular area.

Preferably, wherein the circular area is selected from one of a through hole and a plane.

Preferably, the embossed wave portion and the shaped wave portion have complex peaks and complex troughs, respectively.

Preferably, the wire protection slot is in the form of a long groove, the wire protection groove passes through the circular area, and the wire protection groove is formed such that the peaks of the shaped wave portion are formed with a plurality of first recesses. And a second recess is formed at the bottom of the troughs.

Preferably, the first recesses are such that the heights of the peaks of the shaped wave portion are smaller than the peak heights of the pressed wave portions, and the second recesses are such that the shaped wave portions are The depth of the trough is greater than the valley depth of the pressed wave portion.

Preferably, the wire protection groove has a long groove shape, and the long groove shape is selected from one of a circular groove shape and a rectangular groove shape.

Preferably, the pressing surface of the first mold is corresponding to a wire groove corresponding to the wire protection groove, and the wire groove and the wire protection groove form the forming protection space.

Preferably, the embossed wave portion and the shaped wave portion are selected from one of a circular block shape, a rectangular region shape, a polygonal region shape, and an elliptical region shape.

The forming mold structure of the horn vibrating piece provided by the present invention, the first mold and the second mold are pressed together by a pressing means, so that the wire protection groove and the pressing surface form a forming protection space; in other words When the first mold and the second mold are in a hot press forming process, the first mold and the second mold are heated to perform a hot pressing step on a substrate provided with at least one wire, and the heat is During the press forming process, the wires are correspondingly located in the wire protection groove; therefore, when forming and pressing, the wire is located in the forming protection space, and the wire is also capable of forming a wave shape with the substrate, but The wire protection groove can withstand a small force pressed by the first mold relative to other positions of the forming wave portion; thereby, the present invention can protect the wire in the hot press forming process, and can effectively solve the horn vibrating piece During the process, when the wire is heated and pressurized, the mold may be misaligned or deformed loose due to heat.

Referring to FIG. 1 and FIG. 2 , together with FIG. 3 and FIG. 4 , it is an exploded perspective view of the first embodiment, a perspective view of the second mold, a perspective view showing the pressed state, and an exploded perspective view of the process state. There is disclosed a forming mold structure 100 of a horn vibrating piece, and the forming mold structure 100 of the horn vibrating piece comprises:

a first mold 10 having a pressing surface 11 and a pressing wave portion 12 having a plurality of peaks 121 and a plurality of valleys 122; The pressing wave portion 12 of the first mold 10 has a circular block shape, and the central portion of the shaped wave portion 22 has a circular area 13 selected from the group consisting of a through hole. And one of the planes, and the embodiment is a plane, and does not limit the implementation of the present invention. When the circular area 13 of the embodiment is a through hole, the through hole can be assembled with other forming parts. (not shown).

A second mold 20 corresponding to the pressing surface 11 has a forming surface 21, the forming surface 21 is convexly provided with a shaped wave portion 22, and the forming surface 21 is further recessed with two wire protection grooves 23, The wire protection groove 23 is located at the shaped wave portion 22, and the shaped wave portion 22 has a complex peak 221 and a complex wave valley 222. In the embodiment, the shaped wave portion 22 of the second mold 20 is pressed against the wave. The portion 12 is also in the form of a circular block having a circular area 24 at a central position of the pressed wave portion 12, the circular portion 24 being selected from one of a through hole and a plane, and this embodiment is The plane is taken as an example, and the implementation of the present invention is not limited. When the circular area 24 of the embodiment is a through hole, the through hole can be assembled with other formed parts (not shown).

In addition, please continue to cooperate with FIG. 2, the wire protection grooves 23 are in the shape of a long groove, and the wire protection grooves 23 are semi-arc-shaped, and the wire protection groove 23 passes through the circular area. The wire protection groove 23 is formed such that the peaks 221 of the shaped wave portion 22 are formed with a plurality of first concave portions 231, and the bottom portions of the valleys 222 are respectively formed with a second concave portion 232, and the first concave portions are further formed. 231 is such that the heights of the peaks 221 of the shaped wave portions 22 are smaller than the heights of the peaks 221 of the pressed wave portions 12, and the second concave portions 232 are such that the valleys 222 of the shaped wave portions 22 are The depth is greater than the depth of the valleys 222 of the embossed wave portion 12; further, when the first mold 10 and the second mold 20 are pressed together by a pressing means, the wire protection grooves 23 are made. Two shaped protective spaces 30 are formed between the pressing faces 11.

Please refer to FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 . In the process state, as shown in FIG. 4 , a resin-containing substrate 200 is located between the first mold 10 and the second mold 20 . And one side of the substrate 200 is provided with two strip-shaped wires 300 arranged in parallel, and the wires 300 correspond to the wire protection grooves 23; and then, as shown in FIG. 5, the first mold 10 and the same When the second molds 20 are pressed together, the substrate 200 and the wires 300 are hot pressed, and the substrate 200 is collapsed to form a wave portion 401, and the wires 300 are wavy, such as FIG. 6; further, in the hot pressing state, the wires 300 are located in the forming protection space 30; finally, the substrate 200 shown in FIG. 6 is subjected to a cutting process to form a device. The horn vibrating piece 400 of the wires 300 is as shown in FIG.

In order to further understand the characteristics of this creation, the use of technical means and the expected results, we will describe the use of this creation, and believe that we can have a deeper and more specific understanding of this creation, as follows:

Referring to FIG. 2 , and FIG. 4 , FIG. 5 , FIG. 6 and FIG. 7 , it is a perspective view of the second mold 20 of the first embodiment, an exploded perspective view of the process state, and a schematic view of the hot press forming state. The horn vibrating piece 400 is in a collapsed state diagram and a horn vibrating piece 400 perspective view. In the hot press forming process, when the first mold 10 and the second mold are pressed together, the wire protection groove 23 and the pressing surface 11 form a forming protection space 30; in other words, as shown in FIG. 4 and FIG. The first mold 10 and the second mold 20 are heated during the hot press forming process to provide a substrate 200 with at least one wire 300. The hot pressing step is performed, and the wires 300 are correspondingly located in the wire protection grooves 23 during the hot press forming process.

More specifically, in the hot press forming press, the wires 300 are located in the forming protection spaces 30, and the wires 300 can also be formed into a wave shape with the substrate 200. However, the wire protection grooves 23 can be The other positions of the shaped wave portion 22 are relatively less strongly pressed by the first mold 10; thereby, the present invention can protect the wire 300 in the hot press forming process, and can effectively solve the horn vibrating piece 400 in the process. When the middle wire 300 is heated and pressurized, the misalignment may occur or the deformation may be loose and damaged due to heat.

Please refer to FIG. 8 , which is an exploded perspective view of the second embodiment of the present invention; the difference between this embodiment and the first embodiment is that the wire protection slots 23 are rectangular groove-shaped, and the The wire protection groove 23 is used for forming the flat wire 300. Further, the pressing surface 11 of the first mold 10 is corresponding to the wire protection groove 23, and the second wire groove 14 is recessed. 14 and the wire protection grooves 23 constitute the shaped protection spaces 30; more specifically, the present embodiment can also protect the wires 300 during the hot press forming process; thereby, the embodiment can also achieve As the implementation of the first embodiment is effective, it is also possible to solve the problems of the prior art.

It is worth mentioning that the pressing wave portion 12 and the forming wave portion 22 are selected from one of a circular block shape, a rectangular region shape, a polygonal region shape and an elliptical region shape, and the present invention first In the case of a circular block shape, the pressed wave portion 12 and the shaped wave portion 22 can form the horn horn 400 formed and cut into a disk shape.

Hereby, the characteristics of this creation and its achievable expected effects are stated as follows:

The forming mold structure 100 of the horn vibrating piece of the present invention is provided through the wire protection groove 23, thereby being provided in the hot press forming process, and the wire 300 is located in the forming protection space 30, and the wire 300 is also capable of The substrate 200 is shaped like a wave, but the wire protection groove 23 can withstand a small force pressed against the first die 10 relative to other positions of the shaped wave portion 22; thereby, the present invention can be formed by hot press forming. The wire 300 is protected during the process.

In this way, the author has the following implementation effects and technical effects:

Firstly, the creation system can protect the wire 300 in the hot press forming process, and can effectively solve the problem that when the wire vibrating piece 400 is heated and pressurized in the mold during the process, the wire 300 is dislocated or loosened due to heat. , the problem of damage.

Secondly, the present invention can not only protect the structure of the main body of the wire 300 in the hot press forming process, but also prevent the wires 300 from being misaligned, and stabilize the wires 300 and the horn vibrating piece 400. The effect of combining the outside sides.

Thirdly, the creation of the system can improve the yield, reduce the cost of waste, prevent fiber loosening of the wire 300, improve the stability of the sound quality of the speaker and the high quality sound output.

In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has investigated the technical information about such structures at home and abroad. The same structure has not been found in the literature. This creation has already possessed new types of patent requirements, and applied for it according to law.

However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the equivalent structural changes that are applied to the present specification and the scope of the patent application are intended to be included in the scope of the present patent.

100‧‧‧Forming mold structure

10‧‧‧First mould

11‧‧‧ Pressing surface

12‧‧‧Compression of the wave

121‧‧‧Crest

122‧‧‧ trough

13‧‧‧Circular area

14‧‧‧ wire trough

20‧‧‧Second mold

21‧‧‧ forming surface

22‧‧‧Formed wave parts

221‧‧‧Crest

222‧‧‧ trough

23‧‧‧Wire protection slot

231‧‧‧First recess

232‧‧‧Second recess

24‧‧‧Circular area

30‧‧‧Formed protection space

200‧‧‧Substrate

300‧‧‧ wire

400‧‧‧ horn vibrating piece

401‧‧‧Wave Department

Figure 1 is an exploded perspective view of the first embodiment of the present creation. Figure 2 is a perspective view of a second mold of the first embodiment of the present invention. Fig. 3 is a perspective view showing the first embodiment of the present invention showing a pressed state. Fig. 4 is an exploded perspective view showing the first embodiment of the present invention in a process state. Fig. 5 is a schematic view showing the first embodiment of the present invention in a hot press forming state. Fig. 6 is a schematic view showing the horn vibrating piece of the first embodiment of the present invention in a collapsed state. Fig. 7 is a perspective view of the horn vibrating piece of the first embodiment of the present invention. Figure 8 is an exploded perspective view of the second embodiment of the present creation.

Claims (10)

A forming mold structure for a horn vibrating piece, comprising: a first mold having a pressing surface, the pressing surface is convexly provided with a pressing wave portion; and a second mold corresponding to the pressure The forming surface has a forming surface, the forming surface is convexly provided with a forming wave portion, and the forming surface is further recessed with at least one wire protection groove, wherein the wire protecting groove is located at the forming wave portion; A mold and the second mold are pressed together by a pressing means, so that the wire protection groove and the pressing surface form a forming protection space. The forming mold structure of the horn vibrating piece according to claim 1, wherein the pressing wave portion of the first mold has a circular block shape, and the shaped wave portion of the second mold is pressed. The wavy portion also has a circular block shape. The forming mold structure of the horn vibrating piece according to the second aspect of the invention, wherein the forming wave portion and the central portion of the pressing wave portion each have a circular area. The forming mold structure of the horn vibrating piece according to claim 3, wherein the circular area is selected from one of a through hole and a plane. The forming mold structure of the horn vibrating piece according to the third aspect of the invention, wherein the embossed wave portion and the shaped wave portion respectively have a complex peak and a complex trough. The forming die structure of the horn vibrating piece according to claim 5, wherein the wire protecting groove is in the form of a long groove, the wire protecting groove passes through the circular area, and the wire protecting groove is made The peaks of the shaped wave portion are formed with a plurality of first recesses, and a bottom portion of the troughs is formed with a second recess. The forming mold structure of the horn vibrating piece according to claim 6, wherein the first concave portion is such that the heights of the peaks of the shaped wave portion are smaller than the peak heights of the pressed wave portions, and The second recesses have a depth of the valleys of the shaped wave portion that is greater than the valley depths of the pressed wave portions. The forming die structure of the horn vibrating piece according to claim 1, wherein the wire protecting groove is in the form of a long groove, and the long groove is selected from a circular groove shape and a rectangular groove. One of them. The forming mold structure of the horn vibrating piece according to the first aspect of the invention, wherein the pressing surface of the first mold is corresponding to a wire protection groove concavely provided with a wire groove, and the wire groove and the wire protection groove system are formed. The shaped protection space. The molding die structure of the horn vibrating piece according to the first aspect of the invention, wherein the embossed wave portion and the shaped wave portion are selected from the group consisting of a circular block shape, a rectangular region shape, a polygonal region shape, and an ellipse. One of the regions.